FIG. 3.
Locations of sampling sites relative to sites at which plague was observed in 2005 (open circles) and 2006 (gray-filled circles).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.